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-rw-r--r--Lib/subprocess.py14
1 files changed, 6 insertions, 8 deletions
diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index 55e267f..68ab05e 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -966,6 +966,8 @@ class Popen(object):
if isinstance(args, types.StringTypes):
args = [args]
+ else:
+ args = list(args)
if shell:
args = ["/bin/sh", "-c"] + args
@@ -1001,14 +1003,10 @@ class Popen(object):
if errwrite:
os.dup2(errwrite, 2)
- # Close pipe fds. Make sure we doesn't close the same
- # fd more than once.
- if p2cread:
- os.close(p2cread)
- if c2pwrite and c2pwrite not in (p2cread,):
- os.close(c2pwrite)
- if errwrite and errwrite not in (p2cread, c2pwrite):
- os.close(errwrite)
+ # Close pipe fds. Make sure we don't close the same
+ # fd more than once, or standard fds.
+ for fd in set((p2cread, c2pwrite, errwrite))-set((0,1,2)):
+ if fd: os.close(fd)
# Close all other fds, if asked for
if close_fds: